“It is most unfortunate that so many elected officials in Washington have a greater focus on November 2012’s elections than on sound public policy or advancing America’s interests. Both the House and Senate plans are fiscally reckless and should be deposited on the dump heap of history,” he said.

Google Books has 36 results for "dump heap of history". But I felt that this metaphor has usually been expressed in other words, and Google Books confirms:

trash heap of history

530

dust heap of history

493

ash heap of history

482

trash can of history

458

dust bin of history

438

scrap heap of history

432

rubbish heap of history

414

dust pile of history

231

dung heap of history

124

And so on… (In each case, I've given the number of citations actually presented by the search, not the number given on the first page of hits as the approximate count.)

What's the original source? Or is this a sort of folk-metaphor with many origins or re-inventions?

The ash heap of history (or often garbage heap of history or dustbin of history) is a figurative place to where objects such as persons, events, artifacts, ideologies, etc. are relegated when they are forgotten or marginalized in history.

The expression—or something like it—was coined by Leon Trotsky in response to the Mensheviks walking out of the Second Congress of Soviets, on October 25, 1917 (Julian calendar), thereby enabling the Bolsheviks to establish their dominance. Trotsky declared: "Go out where you belong—into the ash heap of history." A more dramatic version of this event puts Trotsky as saying: “'You are pitiful, isolated individuals! You are bankrupts. Your role is played out. Go where you belong from now on—into the dustbin of history!'"

It has since been used in both the direct and the ironic sense in political and nonpolitical contexts.

The cited source seems to be Augustine Birrell, "Carlyle", in Obiter Dicta, 1884:

Imaginary joys and sorrows may extort from him nothing but grunts and snorts; but let him only worry out for himself, from that great dust-heap called 'history,' some undoubted fact of human and tender interest, and, however small it may be, relating possibly to some one hardly known, and playing but a small part in the events he is recording, and he will wax amazingly sentimental, and perhaps shed as many real tears as Sterne or Dickens do sham ones over their figments.

The 1884 date applies to the fourth edition — I haven't been able to determine the original date of publication. But a Google Books search for "ash|trash|dust|rubbish|garbage|scrap|dump|dung heap|bin|can|pile of history" turns up plenty of pre-1917 examples in English — and presumably there are also earlier examples in Russian and other languages:

The three unpopular ruling houses that had divided the northern half of Germany against Prussia were swept away into the dust-bin of history, and Hanover, Cassel, and Nassau made part of the enlarged kingdom of Hohenzollern.

It is thus that ignorant prejudices are fostered ; and how few of us in afterlife have the time or the will to sift the rubbish of the dust-bin of history on the chance of discovering the diamond of truth.

Whatever else we forget and grow weary of in human annals, whatever else becomes obsolete, and, like "Priam's refuse sons," goes to swell the rubbish heap of history, men's achievements in art are not of this kind.

It is because the old scholasticism with its strife of words had finally sharpened the minds of men into a perception of its own unprofitableness, that that system of verbal philosophy, which did good service in its day by clarifying the doctrine of concepts and purifying the language of science, was forever relegated to the dust-bin of history at the Revival of Learning.

MOST modern calendars mar the sweet simplicity of our lives by reminding us that each day that passes is the anniversary of some perfectly uninteresting event. Their compilers display a degraded passion for chronicling small beer, and rake out the dust-heap of history in an ardent search after rubbish. Mr. Walter Scott, however, has made a new departure and has published a calendar in which every day of the year is made beautiful for us by means of an elegant extract from the poems of Mr. Alfred Austin.

So it seems that by the 1880s, versions of this phrase were already in fairly common use to express two different metaphors: a place to discard people, institutions, and ideas that are no longer useful; and a place to look for interesting or precious things that have been overlooked or forgotten.

Presently Schmidt said to Jefferson: "There is sad news from France, Mr. Secretary."

"Good news, Citizen; altogether good. What if men die that a people may live? Men die in war. What is the difference? Titles will go, a king be swept on to the dust-heap of history."

I suspect that the phrase may have gained currency in the works of the socialist movements of the late 19th century, though I haven't seen other evidence of this. But there's no question that after 1917, there was a strong association with left-wing attitudes towards the fate of anciens régimes.

Tallyrand: You call that dirty rag a symbol of Liberty? I call it a symbol of license, of lawlessness, of murder. What say you, Thomas Jefferson, to the murder of my king, Louis of France? Is that, too, a smbol of Liberty, of Fraternity?

Jefferson: It is the will of the pople. The time is not far distant, Citizen Tallyrand, when every king in Europe will have been swept into the dust heap of history.

And through the next decades, this phrase's association with revolutionary outcomes maintains its strength:

On a sultry July day, as in summer generally, the Tverskayas and Sadovayas in Moscow 1 were dug over with trenches for drainage and pavements, throwing into the dust-heap of history old gates and churches. [Boris Pilniak, The Volga falls to the Caspian Sea, 1931.]

Hell has resolved itself into 'the dust-heap of history.' Purgatory is that limbo in which mortals must remain until they have, proven themselves worthy of admission to that most celestial band known as 'the party. [Hamilton Basso, Wine of the Country, 1941.]

In October of 1917, both the ruling classes and their eulogists were thrown on the dust-heap of history. [The Modern Quarterly, 1947.]

The giant landowners, domestic and foreign, and the emirs, pashas, chieftains, and princes have to be laid in the dust heap of history, where they belong. [Kumar Goshal, People in Colonies, 1948.]

The Soviet Union stands strong and invincible; the democratic movement is growing throughout the world; whereas the Versailles "peacemakers" and the Munchen "pacifiers" are buried in the dust-heap of history … [VOKS bulletin, 1949.]

… nationalist riffraff who are on the dump heap of history, were accompanied by malicious anti-Soviet propaganda, slandering of Soviet Ukraine and Ukrainian historiography, and hypocritical scribbling in pseudo-scientific journals, [Digest of the Soviet Ukrainian press, 1960.]

Our successes confirm again and again the utter bankruptcy of the skeptics and whiners, whom life has cast on the dump heap of history. [Current Soviet policies, 1962.]

It is clear to everyone that these excuses for ideas, picked up on the dump heap of history, are incapable of withstanding the all-conquering force of Marxism-Leninism. [The Current Digest of the Soviet Union, 1963.]

While retaining the association with revolutionary outcomes, the phrase began to switch from left to right with a bold choice by Ronald Reagan (or one of his speechwriter)s in his 1982 address to the British Parliament. As Wikipedia explains

Reagan's speechwriter chose the expression deliberately because of its prior context. His exact phrase was: "… freedom and democracy will leave Marxism and Leninism on the ash heap of history."

My impression is that in recent years, the metaphor has become equally distributed across the political spectrum, as "conservatives" have become increasingly interested in promoting radical change.

A more immediate question: Is "dump heap" a thing anyone actually says? I've certainly never heard it. Is it a southernism? Or is it someone misremembering "ash heap"? In my experience ash heap is by far the more common version of the phrase, but it's probably losing its metaphorical power because people don't warm their homes with fireplaces much anymore and thus don't actually use ash heaps.

Rube said,

@jfruh You had much the same reaction as me. I originally thought this would be about "dump heap" as an eggcorn of "dung heap". (Just as people don't usually have ash heaps any more, they tend not to have a heap of dung anywhere close by.)

G said,

I probably won't be counting citations, but this seems like a much clearer phrase in the Slavic languages, where it seems the Russian "мусорник" or the Ukrainian "смітник" are more commonly used than the various "ash heap" or "dustbin" or "scrap heap" constructions of English.

I was copyeditor for the fifth (and, alas, final) edition of Safire's Political Dictionary, and in the course of my pleasurable labors on the text I supplied him with various material that he wound up using; to quote the "dustbin of history" entry:

Leon Trotsky popularized the term when he shouted after the Mensheviks departing from the 1917 Second Congress of Soviets in protest at the Bolshevik seizure of power, "Go to the place where you belong from now on—the dustbin of history!" This expression, with the Russian for “dustbin” given as musornyi yashchik, appeared in the English translation of Trotsky's autobiography; an eyewitness, Nikolai Sukhanov, quoted Trotsky's phrase as v sornuyu korzinu istorii, but the meaning is the same.

It's clearly a case where a phrase was used off and on for years before one particular usage became canonical; another such is "iron curtain," which I believe has been discussed here before.

Peter said,

I agree with The Ridger. The "dump heap of history" to me implies the "dump heap [section] of history". That is, history has several sections, and the dump heap is the forgotten section.

The "dust-heap called 'history'" implies that all of history is a dust-heap. It doesn't have to mean that history is a place to dump things, rather that history is a "place" that happens to gather dust, thus a dust-heap.

Dump heap seems to have a more negative connotation for me than dust heap.

@Peter: The "dust-heap called 'history'" implies that all of history is a dust-heap. It doesn't have to mean that history is a place to dump things, rather that history is a "place" that happens to gather dust, thus a dust-heap

It could well have acquired that meaning as "dust" in the originally sense became archaic (except in the UK terms such as "dustman" and "dustbin"). In the mid-1800s, a dust heap was where dust (mostly household cinders and ashes) was dumped, along with a variety of other garbage: see Harper's Magazine, Ugliness Redeemed – the Tale of a London Dust-Heap.

bloix said,

An ash heap is a pile of ashes shoveled out of coal stoves and furnaces, quite a common sight before the age of oil. The metaphor of history as a consuming fire is more powerful than the vaguer dust bin. But given Ian Preston's citation, it does look like ash heap, dust bin and the rest are simple euphemisms for excrement.

Surely the English-language version of what Trotsky said depends on the translator. I can see that the meaning can be attributed to him, but not the exact phrase.

Yes, but the interesting thing is that it's not even clear what he said in Russian — the two accounts quoted above use different phrases. At any rate, the idea is now associated with him, whatever the exact wording.

briggslaw said,

Those of us who live in rural America, like me, know very well what a 'dump heap' is. The metaphor grabbed me immediately. Our town dump is open only on Saturdays in the winter, and I drove over there this morning with our trash.

Paleodoc said,

Graeme, the term "frosh" is used in the U.S.A. as an abbreviation for "freshmen," entry-level undergraduates in a university (and also 9th-graders in the U.S. system of elementary and secondary education, which begins with kindergarten and continues with grades 1 through 12). By analogy, new members of the U.S. Congress are called freshmen. I can't explain the vowel shift and can only speculate that it was meant to avoid confusion with well-established meanings of "fresh."

[…] associated with Leon Trotsky (translated variously). Mark Liberman of U Penn. traces its British origins back to 1870.* I choose this term to describe the fate of most buzzwords because it is an example of a turn of […]